/* wf_hypot.c -- float version of w_hypot.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 */

/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */

/*
 * wrapper hypotf(x,y)
 */

#include "fdlibm.h"
#include <errno.h>

#ifdef __STDC__
    float hypotf(float x, float y)  /* wrapper hypotf */
#else
    float hypotf(x,y)       /* wrapper hypotf */
    float x,y;
#endif
{
#ifdef _IEEE_LIBM
    return __ieee754_hypotf(x,y);
#else
    float z;
    struct exception exc;
    z = __ieee754_hypotf(x,y);
    if(_LIB_VERSION == _IEEE_) return z;
    if((!finitef(z))&&finitef(x)&&finitef(y)) {
        /* hypotf(finite,finite) overflow */
#ifndef HUGE_VAL
#define HUGE_VAL inf
        double inf = 0.0;

        SET_HIGH_WORD(inf,0x7ff00000);  /* set inf to infinite */
#endif
        exc.type = OVERFLOW;
        exc.name = "hypotf";
        exc.err = 0;
        exc.arg1 = (double)x;
        exc.arg2 = (double)y;
        if (_LIB_VERSION == _SVID_)
           exc.retval = HUGE;
        else
           exc.retval = HUGE_VAL;
        if (_LIB_VERSION == _POSIX_)
           Djy_SaveLastError(ERANGE);
        else if (!matherr(&exc)) {
            Djy_SaveLastError(ERANGE);
        }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return (float)exc.retval;
    } else
        return z;
#endif
}

#ifdef _DOUBLE_IS_32BITS

#ifdef __STDC__
    double hypot(double x, double y)
#else
    double hypot(x,y)
    double x,y;
#endif
{
    return (double) hypotf((float) x, (float) y);
}

#endif /* defined(_DOUBLE_IS_32BITS) */
